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Definition of peroxide - 7 dictionary results

per⋅ox⋅ide

[puh-rok-sahyd] noun, verb, -id⋅ed, -id⋅ing.
–noun
1. Chemistry.
a. hydrogen peroxide, H2O2 or H–O–O–H.
b. a compound containing the bivalent group –O2–, derived from hydrogen peroxide, as sodium peroxide, Na2O2, or dimethyl peroxide, C3H6O2.
c. the oxide of an element that contains an unusually large amount of oxygen.
–verb (used with object)
2. to use peroxide as a bleaching agent on (esp. the hair).

Origin:
1795–1805; per- + oxide


per⋅ox⋅id⋅ic [pur-ok-sid-ik] , adjective
per·ox·ide   (pə-rŏk'sīd')   
n.  
  1. A compound, such as sodium peroxide, Na2O2, that contains a peroxyl group and yields hydrogen peroxide when treated with an acid.
  2. Hydrogen peroxide.
tr.v.   per·ox·id·ed, per·ox·id·ing, per·ox·ides
  1. To treat with peroxide.
  2. To bleach (hair) with hydrogen peroxide.
per·ox'ide' adj., per'ox·id'ic (pûr'ŏk-sĭd'ĭk) adj.

Peroxide

Per*ox"ide\, n. (Chem.) An oxide containing more oxygen than some other oxide of the same element. Formerly peroxides were regarded as the highest oxides. Cf. Per-, 2.

peroxide 
1804, formed in Eng. from per- "large amount" + oxide (q.v.). Peroxide blonde is attested from 1918.

Main Entry: per·ox·ide
Pronunciation: p&-'räk-"sId
Function: noun
: a compound (as hydrogen peroxide) in which oxygen is visualized asjoined to oxygen

peroxide per·ox·ide (pə-rŏk'sīd')
n.

  1. A compound, such as sodium peroxide, that contains a peroxy group and yields hydrogen peroxide when treated with an acid.
  2. Hydrogen peroxide.

peroxide   (pə-rŏk'sīd')  Pronunciation Key 
  1. A compound containing the group O2. Peroxides are strong oxidizers and are used as industrial bleaches. When any peroxide is combined with an acid, one of the products is hydrogen peroxide.
  2. Hydrogen peroxide.

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